FORE:The main point in hardening and the most that can be done to avoid irregular contraction, is to apply the bath so that it will act first and strongest on the thickest parts. If a piece is tapering or in the form of a wedge, the thick end should enter the bath first; a cold chisel for instance that is wide enough to endanger cracking should be put into the bath with the head [116] downward.
FORE:Notwithstanding the radical error of Aristotles philosophythe false abstraction and isolation of the intellectual from the material sphere in Nature and in human lifeit may furnish a useful corrective to the much falser philosophy insinuated, if not inculcated, by some moralists of our own age and country. Taken altogether, the teaching of these writers seems to be that the industry which addresses itself to the satisfaction of our material wants is much more meritorious than the artistic work which gives us direct aesthetic enjoyment, or the literary work which stimulates and gratifies our intellectual cravings; while within the artistic sphere fidelity of portraiture is preferred to the creation of ideal beauty; and within the intellectual sphere, mere observation of facts is set above the theorising power by which facts are unified and explained. Some of the school to whom we allude are great enemies of materialism; but teaching like theirs is materialism of the worst description. Consistently carried400 out, it would first reduce Europe to the level of China, and then reduce the whole human race to the level of bees or beavers. They forget that when we were all comfortably clothed, housed, and fed, our true lives would have only just begun. The choice would then remain between some new refinement of animal appetite and the theorising activity which, according to Aristotle, is the absolute end, every other activity being only a means for its attainment. There is not, indeed, such a fundamental distinction as he supposed, for activities of every order are connected by a continual reciprocity of services; but this only amounts to saying that the highest knowledge is a means to every other end no less than an end in itself. Aristotle is also fully justified in urging the necessity of leisure as a condition of intellectual progress. We may add that it is a leisure which is amply earned, for without it industrial production could not be maintained at its present height. Nor should the same standard of perfection be imposed on spiritual as on material labour. The latter could not be carried on at all unless success, and not failure, were the rule. It is otherwise in the ideal sphere. There the proportions are necessarily reversed. We must be content if out of a thousand guesses and trials one should contribute something to the immortal heritage of truth. Yet we may hope that this will not always be so, that the great discoveries and creations wrought out through the waste of innumerable lives are not only the expiation of all error and suffering in the past, but are also the pledge of a future when such sacrifices shall no longer be required.As a result of the preceding analysis, Plotinus at last identifies Matter with the Infinitenot an infinite something, but the Infinite pure and simple, apart from any subject of which it can be predicated. We started with what seemed a broad distinction between intelligible and sensible Matter. That distinction now disappears in a new and more comprehensive conception; and, at the same time, Plotinus begins to see his way towards a restatement of his whole system in clearer terms. The Infinite is generated from the infinity or power or eternity of the One; not that there is infinity in the One, but that it is created by the One.484 With the first outrush of energy from the primal fount of things, Matter begins to exist. But no sooner do movement and difference start into life, than they are restrained and bent back by the presence of the One; and this reflection of power or being on itself constitutes the supreme self-consciousness of Nous.485 Whether the subsequent creation of Soul involves a fresh production of energy, or whether a portion of the original stream, which was called into existence by the One, escapes from the restraining self-consciousness of Nous and continues its onward flowthis Plotinus does not say. What he does say is that Soul stands to Nous in the relation of Matter to Form, and is raised to perfection by gazing back on the Ideas contained in Nous, just as Nous itself had been perfected by returning to the One.486 But while the two higher principles remain stationary, the Soul, besides giving birth to a fresh stream of energy, turns towards her own creation and away from the fountain of her life. And, apparently, it is only by328 this condescension on her part that the visible world could have been formed.487 We can explain this by supposing that as the stream of Matter departs more and more from the One, its power of self-reflection continually diminishes, and at length ceases altogether. It is thus that the substratum of sensible objects must, as we have seen, be conceived under the aspect of a passive recipient for the forms imposed on it by the Soul; and just as those forms are a mere image of the noetic Ideas, so also, Plotinus tells us, is their Matter an image of the intelligible Matter which exists in the Nous itself; only the image realises the conception of a material principle more completely than the archetype, because of its more negative and indeterminate nature, a diminution of good being equivalent to an increase of evil.488
FORE:These minor actions formed part of the sortie by the Belgians from Antwerp. One division marched towards Louvain and occupied Aerschot on Thursday evening, September 10th. On Friday they advanced farther in the direction of Wijgmaal-Rotselair-Corbeek-Loo, with continuous hard fighting. On Saturday the fights were fiercest round about these places, and ended in the evening in a retreat171 of the Belgians, who made the enemy pay as heavily as possible for their victory, although they themselves had to leave behind a good many victims.Cores are employed mainly for what may be termed the displacement of metal in moulds. There is no clear line of distinction between cores and moulds, as founding is now conducted; cores may be of green sand, and made to surround the exterior of a piece, as well as to make perforations or to form recesses within it. The term 'core,' in its technical sense, means dried moulds, as distinguished from green sand. Wheels or other castings are said to be cast in cores when the moulds are made in pieces and dried. Supporting and venting cores, and their expansion, are conditions to which especial attention [95] is called. When a core is surrounded with hot metal, it gives off, because of moisture and the burning of the 'wash,' a large amount of gas which must have free means of escape. In the arrangement of cores, therefore, attention must be had to some means of venting, which is generally attained by allowing them to project through the sides of the mould and communicate with the air outside.